Home / 102,431,998.20-153,647,997.30-84,737,278.20

Finding the Fourth Proportional to 102,431,998.20, 153,647,997.30 and 84,737,278.20

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Solution

The fourth proportional to 102,431,998.20, 153,647,997.30 and 84,737,278.20 is: 127,105,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431,998.20 : 153,647,997.30 = 84,737,278.20 : x
  2. Step 2: Convert to fraction form
    102,431,998.20/153,647,997.30 = 84,737,278.20/x
  3. Step 3: Cross multiply
    102,431,998.20x = 153,647,997.30 × 84,737,278.20
  4. Step 4: Simplify right side
    102,431,998.20x = 13,019,713,092,082,950
  5. Step 5: Solve for x
    x = 13,019,713,092,082,950/102,431,998.20
  6. Step 6: Final answer
    x = 127,105,917.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.